package com.beikai.demo01.base;

/**
 * @program: my-product
 * @author: xiaobei
 * @create: 2021-05-16 09:19
 * @description:
 **/
public abstract class BaseService {
    public abstract void close();

    public abstract void open();

    public void alarm() {
        System.out.println("父类的抽象方法");
    }
}
